Push type drain valve



April 1, 1952 B. coURToT PUSH TYPE DRAIN VALVE Filed Jan. 20, 1950 f IIIIIIIIII INVENTOR LOU l5 B COURTOT Patented Apr. 1, 1952 PUSHTYIE DRAINVALVE "Louis-y B; .Coul-tot, *.Clevelaml, Ohio, yassignorto They Weatherhead; Company; Cleveland, 0h10, a. oorporationfof Ohio Application 'January 20, 1950, Serial No. 139,605

i Claims. 1

This inventionrelates to valves and; more particularly, to improvements invalves having-a spring-loaded valvemember-atrial'l may be locked or latched inits openY position.

In many instances, such as' where valves are employed as drain cocks forv vehicle radiators, the valves are relatively inaccessible so that manipulation thereof becomes a problem'. The same appllesto drain cocks-of varioustypes fitted to airplaneand boat engines. These valves should also be of simple and sturdyconstruction, leak-proof, and economy of' manufacture is of great importance.

It is, an object of the present invention to pro-l vide a valvethat is' non -ireeai-ng, vmay-"he readily opened and closed, and `isi-atoned in its open :position and has a body formed from polygonal stock. Briefly, this'is accomplished lby providing a spring-loaded valve memberwherein the; spring holds the valve member-*in 'its closed position and wherein the valve member may be moved to its open position by moving it against the force of the spring. There is a. latch arm on lthe Valve member aligned with a relieved portion of a polygonal ange on the body member, such as the lat of a hexagonal flange, whereupon rotation of the valve member the latch arm is pressed against the flange by a spring to hold' the valve open. To insure that the. valve, will vremain latched in its open position, depressions are formed on the valve latch arm that. receive the corners of a polygonal body flange.

Another object resides in iacilitating manipulation of the valve handle. This is `accomplished by forming, the handleof a cross-shaped stamping. Two of the arms of' the; cross are reverse bent to formlatch fngersand the other two bent up to form wing-lknger grips.Y

The manner in. which these, and. .other object-s and advantages may be attained will vbe apparent from the following detailed description. of` the preferred embodiment of the invention.

In the drawings: i

Fig. 1 is ani-axial section through the valve in its open position;

Fig. 2 is an end view of' the valve;

Fig. 3 is a side view showing the valve in its closed position;

Fig. 4 is a section showing Vthe valve opened;

Figs. 5 and 6 show details ofthe latch` means;

and,

Fig. 7 shows a modified form of handle. Referring to the drawings, the valve V includes a body I0 which may be formed with a threaded attaching nipple II for connection with a suit- .relieved portions.

able receptacle or nipple I2. The body has an axial' bore I3 which rotatably and` slidably receives a sleeve-like Vvalve member I4 having a closed end IIY which carries suitable sealing means .such asan O-ring I1. A valve seat VIIlis formed at the adjacent end' of the valvev body and' the sleeve I4 is apertured as vat I5 so that when the valve is in its open position luid may Apass therethrough. A handle vH is vattached to the valve member by suitable means such as a lip I!!` spun over the handle. y

In order to hold the valve member in its closed position the body is counterbored as at 2n: to receive aspri-ng -2l which engages both Vthe body and the valve members. Means are provided so that'the valve member maybe readily and simply latched in its open position. In the form shown in Figs. 1 to 4, the valve body has been machined from hexagonal stock so that polygonal anges 22 are provided by machining the body to form an intermediate rgroove 23.

The handle- H is bent from a stamping and includes oppositely-disposed, radially inwardly extending arms 24 preferably formed by reversebending the sheet metal stock of the handle before it is attached to the valve member. A specially formed detent recess 2B is imparted to the end portion of each arm 24. In the preferred form the flanges 22 are hexagonal or octagonal so that iiats 2:20a are provided which serve as The included angle of detent 26j equals; the angle between the flats 22a which would be 120?" if the body were formed of hexagonal stock.

Inoperation, as seen in Fig.v 1, with the handle clear of the bodyfthe spring 2| urges the sealing ring- I1 against the valve seat I8 thereby blocking fluid communication; to port I5 in the valve member. If itis: desired to open the valve the handleis gripped and turned until arms 2liv are aligned withuiiats` 22a whereupon the valve memberis moved against the force of the spring until arms24 are disposedoutwardly of groove 23. This axial motion of the valve member is made pos sible because of the clearance of the end of arms '24" and the ila-.ts 22a oi the valve body. yThe valve canalso be opened by pushing the handle against the body and rotating the handle until it clears theats.

With the valve member in the open positionit may be partially rotated to bring detents 2.6 on thearms adjacent the corners of flange 22 whereupon the valve member may be released. If the detents 26 are not riding over the corners a slight rotation of the valve member will bring them into position wherein the spring will snap the detents over the corners and thereby prevent rotation and release of the latch means. Thus, the valve can be entirely manipulated by the sense of touch.

In the form shown in Fig. 7 additional grip surfaces are provided to facilitate manipulation of the valve. 'I'he handle H is connected to the valve member as described. The body 30 has arms 3| reversely as at 32 and detented as at 33 as before. However, wings 34 are bent up from the cross-shaped blank for the handle to provide additional gripping surface. Hole 35 is punched in the body for attachment to the valve member.

A valve constructed in accordance with this invention is unusually economical to manufacture, may be readily opened and closed when in an inaccessible position, and will provide a firm, resilient seal without danger of excessive pressure against the soft seat as is found in valves of the screw-threaded type.

Having completed a detailed description of a preferred form of the invention it will be ap#- parent that other forms thereof may be provided without departing from the essence of the invention as defined in the appended claims.

What is claimed is:

1. A valve comprising a body member, a bore in said body member, a valve member slidably and rotatably mounted in said body bore, valve seat and valve seat engaging means associated With said members, a spring engaging said members and arranged for urging said valve seat means into engagement, a polygonal flange extending from said body, and latch means extending radially from said valve member, said latch means including a radially inwardly extending arm, the inner end of said arm having a recess formed to snugly receive a corner of said polygonal ilange and clearing the ilats of said polygonal flange when the valve member is moved axially against the force of said spring with said arm aligned with a flat, said spring thereafter pressing the recessed portion of said arm into engagement With a corner of said polygonal flange upon partial rotation of said valve member, said handle also including a pair of opposed wing-like grips bent up from said handle intermediate said radial arms.

2. A valve comprising a body member, a bore in said body member, a valve member slidably and rotatably mounted in said body bore, valve seat and valve seat engaging means associated with said members, a spring engaging said members and arranged for urging valve member in one axial direction to bring said valve seat means into engagement, radial non-circular flange means extending from said body and having corners and intermediate relieved portions, said flange means having a smooth generally radial surface facing in the other axial direction, and latch means extending radially from said valve member, said latch means including a radially inwardly extending arm, the inner end of said arm having a recess, said recess having a generally radial bottom wall and side Walls at an angle thereto, the bottom wall of said recess being formed to engage a portion of said smooth generally radial flange surface and the side wallsl of said recess being formed to engage the edges of said ilange corners, said arm clearing said relieved flange portions when the valve member is moved axially against the force of said spring with said arm aligned with one of said relieved ange portions, said spring thereafter pressing the recessed portion of said arm into engagement with a corner of said flange upon turning of said valve member to align said arm with a ilange corner portion.

3. A valve comprising a body member, a bore in said body member,v a valve member slidably and rotatably mounted in said body bore, valve seat and valve seat engaging means associated with said members, a spring engaging said members and arranged for urging valve member in one axial direction to bring said valve seat means into engagement, a polygonal flange extending from said body, said polygonal ilange having a smooth generally radial surface facing in the other axial direction, and latch means extending radially from said valve member, said latch means including a radially inwardly extending arm, the inner end of said arm having a recess, said recess having a generally radial bottom wall and side walls at an angle thereto, the bottom wall of said recess being formed to engage a portion of said smooth generally radial surface and the side Walls of said recess being formed to engage the edges of a corner of said polygonal flange, said arm clearing the dats of said polygonal flange when the valve member is moved axially against the force of said spring with said arm aligned with a fiat, said spring thereafter pressing the recessed portion of said arm into ensagement with a corner of said polygonal flange upon partial rotation of said valve member.

4. A valve comprising a body member, a bore in said body member, a valve member slidably and rotatably mounted in said body bore, valve seat and valve seat engaging means associated withv said members, a spring engaging said members and arranged for urging valve member in one axial direction to bring said valve seat means into engagement, a polygonal flange extending from said body, said polygonal ilange having a smooth generally radial surface facing in the other axial direction, a sheet metal handle attached to said valve member, said handle having an inturned generally flat end forming a radially inwardly extending arm, the inner end of said arm having an axially offset triangular portion forming a recess with an offset radial bottom wall and side walls at an angle thereto, the bottom wall of said recess being formed to engage a portion of said smooth generally radial surface and the side Walls off'said recess being formed to engage the edges of a corner of said polygonal flange, said arm clearing the flats of said polygonal flange when the valve member is moved axially against the force of said spring with said arm aligned with a fiat, said spring thereafter pressing the recessed portion of said arm into engagement with a corner of said polygonal ilange upon partial rotation of said valve member.

LOUIS B. COURTOT.

REFERENCES CITED The following references are of record in the file of. this patent:

UNITED STATES PATENTS 

